CN106847949B - A kind of photovoltaic solar cell component - Google Patents
A kind of photovoltaic solar cell component Download PDFInfo
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- CN106847949B CN106847949B CN201710246582.5A CN201710246582A CN106847949B CN 106847949 B CN106847949 B CN 106847949B CN 201710246582 A CN201710246582 A CN 201710246582A CN 106847949 B CN106847949 B CN 106847949B
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- sealing material
- solar battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
A kind of photovoltaic solar cell component, comprising: backboard, the first sealing material layer, muti-piece solar battery, the second sealing material layer and light incident layer；First sealing material layer is arranged on backboard, and muti-piece solar battery is along the transversely arranged setting of the first sealing material layer；Second sealing material layer is set on the muti-piece solar battery, and light incident layer is set on the second sealing material layer；Top electrode and lower electrode is respectively set in each piece of solar battery upper surface and lower surface；The thermal expansion coefficient of first sealing material layer and the second sealing material layer is identical；The top of the cross section of muti-piece solar battery, the first sealing material layer and the second sealing material layer and bottom difference are coplanar；The current collection of top electrode extremely more extend to bottom at the top of solar battery, with the spaced and parallel electrode.
Description
Technical field
The present invention relates to field of solar energy, more particularly, to a kind of photovoltaic solar cell component.
Background technique
With becoming increasingly conspicuous for environmental pollution and resource exhaustion problem, in recent years, sustainable development is competitively implemented in countries in the world
The energy policy of exhibition.Solar energy is the inexhaustible renewable energy of the mankind and available most direct clear
One of clean energy, solar power generation, that is, photovoltaic power generation cause also attract attention.
The main tool that solar energy completes photoelectric conversion is solar battery, the working efficiency of solar battery and uses the longevity
Life is the research hotspot in the field.The service life of solar battery includes functional lifetime relevant to transfer efficiency and and structure
Intensity relevant fatigue life.
The primary structure of solar battery includes the backboard by setting gradually on lower, and the first sealing material layer, muti-piece is too
Positive energy battery, the second sealing material layer and light incident layer.As shown in Figure 1, when solar battery receives the irradiation of sunlight,
Since the second sealing material is illuminated and the first sealing material is not illuminated, and the expansion rate of the second sealing material is big
In the first sealing material, to generate downward stress to solar battery, it is bent downwardly solar battery from two sides, thus
Make the collector being laterally arranged along solar battery also by the effect of stress；When at night without sunlight incidence, the sun
Energy battery no longer stress, collector restore normal condition.With the use of solar battery, collector is constantly answered masterpiece
With may cause damage.
In order to solve the above-mentioned technical problem, Sanyo Electric Co., Ltd proposes in CN101047212A in the prior art
A kind of solar cell module that can reduce collector damage, by the way that the first sealing material and the second sealing material to be arranged
For the different degrees of cross linking, it thermally expand first sealing material at the incident back side also can in low temperature, to reduce the sun
The bending of energy battery, reduces stress suffered by collector.But this method is needed the first sealing material and the second sealing material
The material and process of material, for the more demanding of processing technology.
Summary of the invention
The present invention provides a kind of photovoltaic solar cell components, can make the first sealing material and the second sealing material
In the identical situation of material properties, reduce influence of the bending stress for collector.
As one aspect of the present invention, a kind of photovoltaic solar cell component is provided, comprising: backboard, the first sealing material
The bed of material, muti-piece solar battery, the second sealing material layer and light incident layer；First sealing material layer is arranged in the back
On plate, the muti-piece solar battery is deposited between the transversely arranged setting of the first sealing material layer, each piece of solar battery
It is being spaced；Second sealing material layer is set on the muti-piece solar battery, and the light incident layer is set to described
On two sealing material layers；Top electrode and lower electrode is respectively set in each piece of solar battery upper surface and lower surface；The
The thermal expansion coefficient of one sealing material layer and the second sealing material layer is identical；The muti-piece solar battery, the first sealing material
The top of the cross section of the bed of material and the second sealing material layer and bottom difference are coplanar；The current collection of the top electrode extremely more
Bottom is extended at the top of from solar battery, with the spaced and parallel electrode.
Preferably, the top electrode does not include with the collector in the vertical transverse electrode in cross section.
Preferably, each collector of the top electrode is connected by the independent electrode outlet line of solar battery two sides.
It preferably, further include the connection line for being electrically connected different solar batteries.
Preferably, the lower electrode is electrode plate identical with the solar-electricity pool area.
Preferably, the light incident layer is glass.
Preferably, the sealing material is one or more of PVB, PC, PMMA, PVC, LDPE.
Preferably, rigid layer is set in the interval, is provided with opening among the rigid layer, is used for the connection line
Pass through.
Preferably, the rigid layer material is aluminium.
Detailed description of the invention
Fig. 1 is existing solar cell module stress schematic diagram.
Fig. 2 is solar cell module structure front view of the embodiment of the present invention.
Fig. 3 is the collector structure top view of the top electrode of solar cell module of the embodiment of the present invention.
The collector schematic diagram of top electrode when Fig. 4 is the bending of solar battery of the embodiment of the present invention.
Fig. 5 is the collector structure top view of the electrode of the solar cell module of the preferred embodiment of the invention.
Specific embodiment
The present invention is more fully described below with reference to accompanying drawings, shown in the drawings of example embodiment of the invention.
However, the present invention can be implemented in many different forms, and it is not construed as being to embodiments set forth herein
Limitation.In the accompanying drawings, similar components will be indicated using same reference numerals.It will be appreciated that when will such as layer, film, region
Or the element of substrate etc, when referred to as " being located at " another element "upper", it can be on another element, Huo Zheye
There may be intermediary elements.On the contrary, intermediary element is not present if element is referred to as " located immediately at " another element "upper".
Moreover, it should be understood that when the element of such as layer, film, region or substrate etc is known as " complete " be located on another element, it
In a part at the edge that can be located in the whole surface of another element, and another element can not be located at.
The solar cell module of the embodiment of the present invention, referring to fig. 2, including backboard 10, the first sealing material layer 20, muti-piece
Solar battery 30, the second sealing material layer 40 and light incident layer 50.Backboard 10 is made by transparent material, can be transparent tree
Rouge, the materials such as metal oxide, is also possible to such as glass.First sealing material layer 20 is arranged on backboard 10, can be with
One or more of PVB, PC, PMMA, PVC, LDPE etc..Guarantor can be set between backboard 10 and the first sealing material layer 20
Sheath such as silicone resin, for preventing solar battery by the influence of moisture and physical impact.
Muti-piece solar battery 30 exists between the transversely arranged setting of the first sealing material layer 20, each piece of solar battery
Interval 21.Solar battery 30 can be monocrystalline silicon, polysilicon or non-crystal silicon solar cell, inside may include for example
V group element, such as phosphorus (P), arsenic (As) and antimony (Sb) etc..The plane of incidence of solar battery 30 can be set it is textured, to increase
Add light impingement rate.
Second sealing material layer 40 is set on muti-piece solar battery 30,40 use of the second sealing material layer and first close
The identical material of closure material layer 20, so that its thermal expansion coefficient is identical.Second sealing material layer 40 and the first sealing material layer 20
It can be solidified by laminating technology.
Light incident layer 50 is set on the second sealing material layer 40, and for example low iron of optical glass of high transparency can be used
Tempered glass is as light incident layer 50.Protective layer such as silicon tree can be set between light incident layer 50 and the second sealing material layer 40
Rouge, for preventing solar battery by the influence of moisture and physical impact.
The top electrode 31 of the upper surface setting collected current of each piece of solar battery 30.Metal electricity can be used in top electrode 31
Pole, such as by nickel (Ni), copper (Cu), silver-colored (Ag), aluminium (Al), tin (Sn), zinc (Zn), indium (In), titanium (Ti), golden (Au) etc. one
Kind or a variety of production.Top electrode 31 is located at 30 upper surface of solar battery, and area should be as small as possible, to avoid influencing
Such as gate-shaped electrode can be used as top electrode 31 in the light impingement rate of solar battery 30.
Metal electricity can be used in the lower electrode 32 of the lower surface setting collected current of each piece of solar battery 30, lower electrode 32
Pole, such as by nickel (Ni), copper (Cu), silver-colored (Ag), aluminium (Al), tin (Sn), zinc (Zn), indium (In), titanium (Ti), golden (Au) etc. one
Kind or a variety of production.Lower electrode 32 can be set to electrode layer, and area is identical as the area of solar battery 30.
The top electrode of adjacent solar battery 30 passes through the connection line being electrically connected between solar battery with lower electrode
33 are connected with each other.
The structure of the top electrode 31 of solar cell module is referring to fig. 2 and Fig. 3, solar battery 30 are rectangular cell
Plate, along the transversely arranged setting of the first sealing material layer 20.The length of solar battery 30 and the first sealing material layer 20, second
The width of sealing material layer 30 is equal, thus solar battery 30, the first sealing material layer 20 and the second sealing material layer 30
Cross section top and bottom difference it is coplanar.The collector 311 of top electrode 31 is more and prolongs at the top of solar battery 30
Bottom is reached, the parallel electrode in the interval 21 between solar battery 30.Top electrode 31 does not include with collector 311 transversal
The vertical transverse electrode in face, collector 311 are connected by the independent electrode outlet line of 30 two sides of solar battery.
The collector 311 of the solar cell module top electrode 31 of the embodiment of the present invention is in solar battery 30 by sunlight
When irradiation, as shown in figure 4, in irradiation of the solar battery 30 by sunlight, since the second sealing material is illuminated and
First sealing material is not illuminated, and it is close that the expansion rate of second sealing material in the gap between solar battery is greater than first
Closure material is bent downwardly solar battery from two sides to generate downward stress to solar battery, due to of the invention real
Collector 311 in example to be applied separately to be independently arranged laterally, the stress that each collector 311 is subject to is very little, because
This can reduce the stress damage of collector 311.
Rigid layer 22, rigid layer 22 is arranged referring to Fig. 5 in the preferred embodiment of the invention on the interval 21 of solar battery 30
Centre is provided with opening 23, passes through for connection line 33.Rigid layer 22 extends to bottom at the top of solar battery 30, can
To be one layer or multilayer, rigid layer material can be metal material such as aluminium.It is heated swollen downwards in the second sealing material layer 40
When swollen, rigid layer 22 can partially bear reclinate active force, to reduce the bending of solar battery 30, further drop
The stress of low collector 311.Likewise it is preferred that, reflecting surface can be set by the upper surface of rigid layer 22, by light incidence
The inner surface of layer 50 is set as reflecting layer, to further reduce solar energy using the light for being irradiated to solar-electricity cell compartment
The optical loss of battery component.
Although describing embodiment referring to multiple illustrative embodiments, it should be understood that those skilled in the art can set
Count out many other modification and implementations in the range of falling into the principle of the disclosure.More specifically, can the disclosure,
In attached drawing and scope of the appended claims to the building block of this theme combination unit and/arrangement mode carry out various transformation and
Modification.In addition to transformation and modification to building block and/or arrangement mode, alternative use is also to those skilled in the art
Significantly.
Claims (5)
1. a kind of photovoltaic solar cell component, comprising: backboard, the first sealing material layer, muti-piece solar battery, the second sealing
Material layer and light incident layer；First sealing material layer is arranged on the backboard, and the muti-piece solar battery is along institute
The transversely arranged setting of the first sealing material layer is stated, there is interval between each piece of solar battery；Second sealing material layer is set
It is placed on the muti-piece solar battery, the light incident layer is set on second sealing material layer；Each piece of sun
Top electrode and lower electrode is respectively set in energy battery upper surface and lower surface；It is characterized by: the solar battery is length
Rectangular cell plate, along the transversely arranged setting of the first sealing material layer；First sealing material layer and the second sealing material layer
Thermal expansion coefficient is identical；The cross section of the muti-piece solar battery, the first sealing material layer and the second sealing material layer
Top and bottom difference are coplanar；When irradiation of the solar cell module by sunlight, due to the second sealing material by
To irradiation, the first sealing material is not illuminated, and the expansion rate of second sealing material in the gap between solar battery is big
In the first sealing material, to generate downward stress to solar battery, it is bent downwardly solar battery from two sides；It is described
The current collection of top electrode extremely more extend to bottom at the top of solar battery, with the spaced and parallel electrode；It is described to power on
Pole does not include with collector in the vertical transverse electrode in cross section, and collector is drawn by the independent electrode of solar battery two sides
Outlet is connected；The photovoltaic solar cell component further includes the connection line for being electrically connected different solar batteries；It is described too
It is positive rigid layer to be set on the interval of battery, opening is provided among rigid layer, is passed through for connection line, the rigid layer from
Bottom is extended at the top of solar battery.
2. photovoltaic solar cell component according to claim 1, it is characterised in that: the lower electrode be and the sun
It can the identical electrode plate of cell area.
3. photovoltaic solar cell component according to claim 2, it is characterised in that: the backboard is by resin film structure
At.
4. photovoltaic solar cell component according to claim 3, it is characterised in that: the light incident layer is optics glass
Glass.
5. photovoltaic solar cell component according to claim 4, it is characterised in that: the sealing material be PVB, PC,
One or more of PMMA, PVC, LDPE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710246582.5A CN106847949B (en) | 2017-04-16 | 2017-04-16 | A kind of photovoltaic solar cell component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710246582.5A CN106847949B (en) | 2017-04-16 | 2017-04-16 | A kind of photovoltaic solar cell component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106847949A CN106847949A (en) | 2017-06-13 |
| CN106847949B true CN106847949B (en) | 2019-05-07 |
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| CN201710246582.5A Active CN106847949B (en) | 2017-04-16 | 2017-04-16 | A kind of photovoltaic solar cell component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108767030B (en) * | 2017-04-23 | 2020-07-07 | 佛山市阳邦光电科技有限公司 | Photovoltaic solar cell module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4301322A (en) * | 1980-04-03 | 1981-11-17 | Exxon Research & Engineering Co. | Solar cell with corrugated bus |
| JPWO2013069680A1 (en) * | 2011-11-10 | 2015-04-02 | 三洋電機株式会社 | Solar cell module |
| KR102085039B1 (en) * | 2013-09-27 | 2020-04-14 | 엘지전자 주식회사 | Solar cell module and fabrication method thereof |
| JP2016063019A (en) * | 2014-09-17 | 2016-04-25 | 凸版印刷株式会社 | Sealing material with electric wiring for back contact type battery module and back contact type battery module |
| KR101594841B1 (en) * | 2014-10-07 | 2016-02-18 | 한국에너지기술연구원 | Solar cell module and method for manufactoring the same |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190401 Address after: 225800 Yuesheng Road, Jianshui Town Industrial Concentration Zone, Baoying County, Yangzhou City, Jiangsu Province Applicant after: Jiangsu Jingke Tiansheng Energy Co., Ltd. Address before: 055550 No. 21, five North Street, Ma Jia Zhuang village, Jia Jia Kou Town, Ningjin, Xingtai, Hebei Applicant before: Han Shaoru |
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